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- Committer: Björn Påhlsson
- Date: 2008-08-24 10:19:59 UTC
- mfrom: (98 mandos)
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 99.
- Revision ID: belorn@braxen-20080824101959-cbs6x05jwgqrlp2s
merge + fallback bugg
- files added:
- COPYING
- files removed:
- ca.pem
- files renamed:
- server.py => mandos
- server.conf => mandos.conf
- plugbasedclient.c => plugin-runner.c
- plugins.d/passprompt.c => plugins.d/password-prompt.c
- plugins.d/mandosclient.c => plugins.d/password-request.c
- files modified:
- Makefile
added
removed
plugins.d/password-request.c
25
25
* along with this program. If not, see
26
26
* <http://www.gnu.org/licenses/>.
27
27
*
28
* Contact the authors at <https://www.fukt.bsnet.se/~belorn/> and
29
* <https://www.fukt.bsnet.se/~teddy/>.
28
* Contact the authors at <mandos@fukt.bsnet.se>.
30
29
*/
31
30
32
31
/* Needed by GPGME, specifically gpgme_data_seek() */
33
32
#define _LARGEFILE_SOURCE
34
33
#define _FILE_OFFSET_BITS 64
35
34
36
#include <stdio.h>
37
#include <assert.h>
38
#include <stdlib.h>
39
#include <time.h>
40
#include <net/if.h> /* if_nametoindex */
41
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
38
stdout, ferror() */
39
#include <stdint.h> /* uint16_t, uint32_t */
40
#include <stddef.h> /* NULL, size_t, ssize_t */
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
42
srand() */
43
#include <stdbool.h> /* bool, true */
44
#include <string.h> /* memset(), strcmp(), strlen(),
45
strerror(), asprintf(), strcpy() */
46
#include <sys/ioctl.h> /* ioctl */
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
48
sockaddr_in6, PF_INET6,
49
SOCK_STREAM, INET6_ADDRSTRLEN,
50
uid_t, gid_t */
51
#include <inttypes.h> /* PRIu16 */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton(),
54
connect() */
55
#include <assert.h> /* assert() */
56
#include <errno.h> /* perror(), errno */
57
#include <time.h> /* time() */
58
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
59
SIOCSIFFLAGS, if_indextoname(),
60
if_nametoindex(), IF_NAMESIZE */
61
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
62
getuid(), getgid(), setuid(),
63
setgid() */
64
#include <netinet/in.h>
65
#include <arpa/inet.h> /* inet_pton(), htons */
66
#include <iso646.h> /* not, and */
67
#include <argp.h> /* struct argp_option, error_t, struct
68
argp_state, struct argp,
69
argp_parse(), ARGP_KEY_ARG,
70
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
71
72
/* Avahi */
73
/* All Avahi types, constants and functions
74
Avahi*, avahi_*,
75
AVAHI_* */
42
76
#include <avahi-core/core.h>
43
77
#include <avahi-core/lookup.h>
44
78
#include <avahi-core/log.h>
46
80
#include <avahi-common/malloc.h>
47
81
#include <avahi-common/error.h>
48
82
49
//mandos client part
50
#include <sys/types.h> /* socket(), inet_pton() */
51
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
52
struct in6_addr, inet_pton() */
53
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
54
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
55
56
#include <unistd.h> /* close() */
57
#include <netinet/in.h>
58
#include <stdbool.h> /* true */
59
#include <string.h> /* memset */
60
#include <arpa/inet.h> /* inet_pton() */
61
#include <iso646.h> /* not */
62
63
// gpgme
64
#include <errno.h> /* perror() */
65
#include <gpgme.h>
66
67
// getopt long
68
#include <getopt.h>
69
70
#ifndef CERT_ROOT
71
#define CERT_ROOT "/conf/conf.d/cryptkeyreq/"
72
#endif
73
#define CERTFILE CERT_ROOT "openpgp-client.txt"
74
#define KEYFILE CERT_ROOT "openpgp-client-key.txt"
83
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
85
functions:
86
gnutls_*
87
init_gnutls_session(),
88
GNUTLS_* */
89
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
90
GNUTLS_OPENPGP_FMT_BASE64 */
91
92
/* GPGME */
93
#include <gpgme.h> /* All GPGME types, constants and
94
functions:
95
gpgme_*
96
GPGME_PROTOCOL_OpenPGP,
97
GPG_ERR_NO_* */
98
75
99
#define BUFFER_SIZE 256
76
#define DH_BITS 1024
77
100
78
101
bool debug = false;
102
static const char *keydir = "/conf/conf.d/mandos";
103
static const char mandos_protocol_version[] = "1";
104
const char *argp_program_version = "password-request 1.0";
105
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
79
106
107
/* Used for passing in values through the Avahi callback functions */
80
108
typedef struct {
81
gnutls_session_t session;
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
82
111
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
83
113
gnutls_dh_params_t dh_params;
84
} encrypted_session;
85
86
87
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
88
char **new_packet, const char *homedir){
114
const char *priority;
115
} mandos_context;
116
117
/*
118
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
119
* "buffer_capacity" is how much is currently allocated,
120
* "buffer_length" is how much is already used.
121
*/
122
size_t adjustbuffer(char **buffer, size_t buffer_length,
123
size_t buffer_capacity){
124
if (buffer_length + BUFFER_SIZE > buffer_capacity){
125
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
126
if (buffer == NULL){
127
return 0;
128
}
129
buffer_capacity += BUFFER_SIZE;
130
}
131
return buffer_capacity;
132
}
133
134
/*
135
* Decrypt OpenPGP data using keyrings in HOMEDIR.
136
* Returns -1 on error
137
*/
138
static ssize_t pgp_packet_decrypt (const char *cryptotext,
139
size_t crypto_size,
140
char **plaintext,
141
const char *homedir){
89
142
gpgme_data_t dh_crypto, dh_plain;
90
143
gpgme_ctx_t ctx;
91
144
gpgme_error_t rc;
92
145
ssize_t ret;
93
ssize_t new_packet_capacity = 0;
94
ssize_t new_packet_length = 0;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
95
148
gpgme_engine_info_t engine_info;
96
149
97
150
if (debug){
98
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
99
152
}
100
153
101
154
/* Init GPGME */
102
155
gpgme_check_version(NULL);
103
gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
156
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
157
if (rc != GPG_ERR_NO_ERROR){
158
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
159
gpgme_strsource(rc), gpgme_strerror(rc));
160
return -1;
161
}
104
162
105
/* Set GPGME home directory */
163
/* Set GPGME home directory for the OpenPGP engine only */
106
164
rc = gpgme_get_engine_info (&engine_info);
107
165
if (rc != GPG_ERR_NO_ERROR){
108
166
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
118
176
engine_info = engine_info->next;
119
177
}
120
178
if(engine_info == NULL){
121
fprintf(stderr, "Could not set home dir to %s\n", homedir);
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
122
180
return -1;
123
181
}
124
182
125
/* Create new GPGME data buffer from packet buffer */
126
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
127
186
if (rc != GPG_ERR_NO_ERROR){
128
187
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
129
188
gpgme_strsource(rc), gpgme_strerror(rc));
135
194
if (rc != GPG_ERR_NO_ERROR){
136
195
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
137
196
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
138
198
return -1;
139
199
}
140
200
143
203
if (rc != GPG_ERR_NO_ERROR){
144
204
fprintf(stderr, "bad gpgme_new: %s: %s\n",
145
205
gpgme_strsource(rc), gpgme_strerror(rc));
146
return -1;
206
plaintext_length = -1;
207
goto decrypt_end;
147
208
}
148
209
149
/* Decrypt data from the FILE pointer to the plaintext data
150
buffer */
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
151
212
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
152
213
if (rc != GPG_ERR_NO_ERROR){
153
214
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
154
215
gpgme_strsource(rc), gpgme_strerror(rc));
155
return -1;
216
plaintext_length = -1;
217
goto decrypt_end;
156
218
}
157
219
158
220
if(debug){
159
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
160
222
}
161
223
162
224
if (debug){
163
225
gpgme_decrypt_result_t result;
164
226
result = gpgme_op_decrypt_result(ctx);
167
229
} else {
168
230
fprintf(stderr, "Unsupported algorithm: %s\n",
169
231
result->unsupported_algorithm);
170
fprintf(stderr, "Wrong key usage: %d\n",
232
fprintf(stderr, "Wrong key usage: %u\n",
171
233
result->wrong_key_usage);
172
234
if(result->file_name != NULL){
173
235
fprintf(stderr, "File name: %s\n", result->file_name);
188
250
}
189
251
}
190
252
191
/* Delete the GPGME FILE pointer cryptotext data buffer */
192
gpgme_data_release(dh_crypto);
193
194
253
/* Seek back to the beginning of the GPGME plaintext data buffer */
195
gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET);
196
197
*new_packet = 0;
254
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
255
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
258
}
259
260
*plaintext = NULL;
198
261
while(true){
199
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
200
*new_packet = realloc(*new_packet,
201
(unsigned int)new_packet_capacity
202
+ BUFFER_SIZE);
203
if (*new_packet == NULL){
204
perror("realloc");
205
return -1;
206
}
207
new_packet_capacity += BUFFER_SIZE;
262
plaintext_capacity = adjustbuffer(plaintext,
263
(size_t)plaintext_length,
264
plaintext_capacity);
265
if (plaintext_capacity == 0){
266
perror("adjustbuffer");
267
plaintext_length = -1;
268
goto decrypt_end;
208
269
}
209
270
210
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
211
272
BUFFER_SIZE);
212
273
/* Print the data, if any */
213
274
if (ret == 0){
275
/* EOF */
214
276
break;
215
277
}
216
278
if(ret < 0){
217
279
perror("gpgme_data_read");
218
return -1;
280
plaintext_length = -1;
281
goto decrypt_end;
219
282
}
220
new_packet_length += ret;
283
plaintext_length += ret;
221
284
}
222
285
223
/* FIXME: check characters before printing to screen so to not print
224
terminal control characters */
225
/* if(debug){ */
226
/* fprintf(stderr, "decrypted password is: "); */
227
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
228
/* fprintf(stderr, "\n"); */
229
/* } */
286
if(debug){
287
fprintf(stderr, "Decrypted password is: ");
288
for(ssize_t i = 0; i < plaintext_length; i++){
289
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
290
}
291
fprintf(stderr, "\n");
292
}
293
294
decrypt_end:
295
296
/* Delete the GPGME cryptotext data buffer */
297
gpgme_data_release(dh_crypto);
230
298
231
299
/* Delete the GPGME plaintext data buffer */
232
300
gpgme_data_release(dh_plain);
233
return new_packet_length;
301
return plaintext_length;
234
302
}
235
303
236
304
static const char * safer_gnutls_strerror (int value) {
237
const char *ret = gnutls_strerror (value);
305
const char *ret = gnutls_strerror (value); /* Spurious warning */
238
306
if (ret == NULL)
239
307
ret = "(unknown)";
240
308
return ret;
241
309
}
242
310
243
void debuggnutls(__attribute__((unused)) int level,
244
const char* string){
245
fprintf(stderr, "%s", string);
311
/* GnuTLS log function callback */
312
static void debuggnutls(__attribute__((unused)) int level,
313
const char* string){
314
fprintf(stderr, "GnuTLS: %s", string);
246
315
}
247
316
248
int initgnutls(encrypted_session *es){
249
const char *err;
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
250
320
int ret;
251
321
252
322
if(debug){
253
323
fprintf(stderr, "Initializing GnuTLS\n");
254
324
}
255
325
256
if ((ret = gnutls_global_init ())
257
!= GNUTLS_E_SUCCESS) {
258
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
326
ret = gnutls_global_init();
327
if (ret != GNUTLS_E_SUCCESS) {
328
fprintf (stderr, "GnuTLS global_init: %s\n",
329
safer_gnutls_strerror(ret));
259
330
return -1;
260
331
}
261
332
262
333
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
263
337
gnutls_global_set_log_level(11);
264
338
gnutls_global_set_log_function(debuggnutls);
265
339
}
266
340
267
/* openpgp credentials */
268
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
269
!= GNUTLS_E_SUCCESS) {
270
fprintf (stderr, "memory error: %s\n",
341
/* OpenPGP credentials */
342
gnutls_certificate_allocate_credentials(&mc->cred);
343
if (ret != GNUTLS_E_SUCCESS){
344
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
345
warning */
271
346
safer_gnutls_strerror(ret));
347
gnutls_global_deinit ();
272
348
return -1;
273
349
}
274
350
275
351
if(debug){
276
352
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
277
" and keyfile %s as GnuTLS credentials\n", CERTFILE,
278
KEYFILE);
353
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
354
seckeyfilename);
279
355
}
280
356
281
357
ret = gnutls_certificate_set_openpgp_key_file
282
(es->cred, CERTFILE, KEYFILE, GNUTLS_OPENPGP_FMT_BASE64);
358
(mc->cred, pubkeyfilename, seckeyfilename,
359
GNUTLS_OPENPGP_FMT_BASE64);
283
360
if (ret != GNUTLS_E_SUCCESS) {
284
fprintf
285
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
286
" '%s')\n",
287
ret, CERTFILE, KEYFILE);
288
fprintf(stdout, "The Error is: %s\n",
361
fprintf(stderr,
362
"Error[%d] while reading the OpenPGP key pair ('%s',"
363
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
364
fprintf(stdout, "The GnuTLS error is: %s\n",
289
365
safer_gnutls_strerror(ret));
290
return -1;
291
}
292
293
//GnuTLS server initialization
294
if ((ret = gnutls_dh_params_init (&es->dh_params))
295
!= GNUTLS_E_SUCCESS) {
296
fprintf (stderr, "Error in dh parameter initialization: %s\n",
297
safer_gnutls_strerror(ret));
298
return -1;
299
}
300
301
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
302
!= GNUTLS_E_SUCCESS) {
303
fprintf (stderr, "Error in prime generation: %s\n",
304
safer_gnutls_strerror(ret));
305
return -1;
306
}
307
308
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
309
310
// GnuTLS session creation
311
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
312
!= GNUTLS_E_SUCCESS){
366
goto globalfail;
367
}
368
369
/* GnuTLS server initialization */
370
ret = gnutls_dh_params_init(&mc->dh_params);
371
if (ret != GNUTLS_E_SUCCESS) {
372
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
373
" %s\n", safer_gnutls_strerror(ret));
374
goto globalfail;
375
}
376
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
377
if (ret != GNUTLS_E_SUCCESS) {
378
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
379
safer_gnutls_strerror(ret));
380
goto globalfail;
381
}
382
383
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
384
385
return 0;
386
387
globalfail:
388
389
gnutls_certificate_free_credentials(mc->cred);
390
gnutls_global_deinit();
391
return -1;
392
393
}
394
395
static int init_gnutls_session(mandos_context *mc,
396
gnutls_session_t *session){
397
int ret;
398
/* GnuTLS session creation */
399
ret = gnutls_init(session, GNUTLS_SERVER);
400
if (ret != GNUTLS_E_SUCCESS){
313
401
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
314
402
safer_gnutls_strerror(ret));
315
403
}
316
404
317
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
318
!= GNUTLS_E_SUCCESS) {
319
fprintf(stderr, "Syntax error at: %s\n", err);
320
fprintf(stderr, "GnuTLS error: %s\n",
321
safer_gnutls_strerror(ret));
322
return -1;
405
{
406
const char *err;
407
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
408
if (ret != GNUTLS_E_SUCCESS) {
409
fprintf(stderr, "Syntax error at: %s\n", err);
410
fprintf(stderr, "GnuTLS error: %s\n",
411
safer_gnutls_strerror(ret));
412
gnutls_deinit (*session);
413
return -1;
414
}
323
415
}
324
416
325
if ((ret = gnutls_credentials_set
326
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
327
!= GNUTLS_E_SUCCESS) {
328
fprintf(stderr, "Error setting a credentials set: %s\n",
417
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
418
mc->cred);
419
if (ret != GNUTLS_E_SUCCESS) {
420
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
329
421
safer_gnutls_strerror(ret));
422
gnutls_deinit (*session);
330
423
return -1;
331
424
}
332
425
333
426
/* ignore client certificate if any. */
334
gnutls_certificate_server_set_request (es->session,
427
gnutls_certificate_server_set_request (*session,
335
428
GNUTLS_CERT_IGNORE);
336
429
337
gnutls_dh_set_prime_bits (es->session, DH_BITS);
430
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
338
431
339
432
return 0;
340
433
}
341
434
342
void empty_log(__attribute__((unused)) AvahiLogLevel level,
343
__attribute__((unused)) const char *txt){}
435
/* Avahi log function callback */
436
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
437
__attribute__((unused)) const char *txt){}
344
438
345
int start_mandos_communication(const char *ip, uint16_t port,
346
unsigned int if_index){
439
/* Called when a Mandos server is found */
440
static int start_mandos_communication(const char *ip, uint16_t port,
441
AvahiIfIndex if_index,
442
mandos_context *mc){
347
443
int ret, tcp_sd;
348
struct sockaddr_in6 to;
349
encrypted_session es;
444
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
350
445
char *buffer = NULL;
351
446
char *decrypted_buffer;
352
447
size_t buffer_length = 0;
353
448
size_t buffer_capacity = 0;
354
449
ssize_t decrypted_buffer_size;
355
size_t written = 0;
450
size_t written;
356
451
int retval = 0;
357
452
char interface[IF_NAMESIZE];
453
gnutls_session_t session;
454
455
ret = init_gnutls_session (mc, &session);
456
if (ret != 0){
457
return -1;
458
}
358
459
359
460
if(debug){
360
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
361
ip, port);
461
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
462
"\n", ip, port);
362
463
}
363
464
364
465
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
366
467
perror("socket");
367
468
return -1;
368
469
}
369
370
if(if_indextoname(if_index, interface) == NULL){
371
if(debug){
470
471
if(debug){
472
if(if_indextoname((unsigned int)if_index, interface) == NULL){
372
473
perror("if_indextoname");
474
return -1;
373
475
}
374
return -1;
375
}
376
377
if(debug){
378
476
fprintf(stderr, "Binding to interface %s\n", interface);
379
477
}
380
478
381
memset(&to,0,sizeof(to)); /* Spurious warning */
382
to.sin6_family = AF_INET6;
383
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
479
memset(&to, 0, sizeof(to));
480
to.in6.sin6_family = AF_INET6;
481
/* It would be nice to have a way to detect if we were passed an
482
IPv4 address here. Now we assume an IPv6 address. */
483
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
384
484
if (ret < 0 ){
385
485
perror("inet_pton");
386
486
return -1;
387
}
487
}
388
488
if(ret == 0){
389
489
fprintf(stderr, "Bad address: %s\n", ip);
390
490
return -1;
391
491
}
392
to.sin6_port = htons(port); /* Spurious warning */
492
to.in6.sin6_port = htons(port); /* Spurious warning */
393
493
394
to.sin6_scope_id = (uint32_t)if_index;
494
to.in6.sin6_scope_id = (uint32_t)if_index;
395
495
396
496
if(debug){
397
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
398
/* char addrstr[INET6_ADDRSTRLEN]; */
399
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
400
/* sizeof(addrstr)) == NULL){ */
401
/* perror("inet_ntop"); */
402
/* } else { */
403
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
404
/* addrstr, ntohs(to.sin6_port)); */
405
/* } */
497
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
498
port);
499
char addrstr[INET6_ADDRSTRLEN] = "";
500
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
501
sizeof(addrstr)) == NULL){
502
perror("inet_ntop");
503
} else {
504
if(strcmp(addrstr, ip) != 0){
505
fprintf(stderr, "Canonical address form: %s\n", addrstr);
506
}
507
}
406
508
}
407
509
408
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
510
ret = connect(tcp_sd, &to.in, sizeof(to));
409
511
if (ret < 0){
410
512
perror("connect");
411
513
return -1;
412
514
}
413
414
ret = initgnutls (&es);
415
if (ret != 0){
416
retval = -1;
417
return -1;
515
516
const char *out = mandos_protocol_version;
517
written = 0;
518
while (true){
519
size_t out_size = strlen(out);
520
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
521
out_size - written));
522
if (ret == -1){
523
perror("write");
524
retval = -1;
525
goto mandos_end;
526
}
527
written += (size_t)ret;
528
if(written < out_size){
529
continue;
530
} else {
531
if (out == mandos_protocol_version){
532
written = 0;
533
out = "\r\n";
534
} else {
535
break;
536
}
537
}
418
538
}
419
420
gnutls_transport_set_ptr (es.session,
421
(gnutls_transport_ptr_t) tcp_sd);
422
539
423
540
if(debug){
424
541
fprintf(stderr, "Establishing TLS session with %s\n", ip);
425
542
}
426
543
427
ret = gnutls_handshake (es.session);
544
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
545
546
do{
547
ret = gnutls_handshake (session);
548
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
428
549
429
550
if (ret != GNUTLS_E_SUCCESS){
430
551
if(debug){
431
fprintf(stderr, "\n*** Handshake failed ***\n");
552
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
432
553
gnutls_perror (ret);
433
554
}
434
555
retval = -1;
435
goto exit;
556
goto mandos_end;
436
557
}
437
558
438
//Retrieve OpenPGP packet that contains the wanted password
559
/* Read OpenPGP packet that contains the wanted password */
439
560
440
561
if(debug){
441
562
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
443
564
}
444
565
445
566
while(true){
446
if (buffer_length + BUFFER_SIZE > buffer_capacity){
447
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
448
if (buffer == NULL){
449
perror("realloc");
450
goto exit;
451
}
452
buffer_capacity += BUFFER_SIZE;
567
buffer_capacity = adjustbuffer(&buffer, buffer_length,
568
buffer_capacity);
569
if (buffer_capacity == 0){
570
perror("adjustbuffer");
571
retval = -1;
572
goto mandos_end;
453
573
}
454
574
455
ret = gnutls_record_recv
456
(es.session, buffer+buffer_length, BUFFER_SIZE);
575
ret = gnutls_record_recv(session, buffer+buffer_length,
576
BUFFER_SIZE);
457
577
if (ret == 0){
458
578
break;
459
579
}
463
583
case GNUTLS_E_AGAIN:
464
584
break;
465
585
case GNUTLS_E_REHANDSHAKE:
466
ret = gnutls_handshake (es.session);
586
do{
587
ret = gnutls_handshake (session);
588
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
467
589
if (ret < 0){
468
fprintf(stderr, "\n*** Handshake failed ***\n");
590
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
469
591
gnutls_perror (ret);
470
592
retval = -1;
471
goto exit;
593
goto mandos_end;
472
594
}
473
595
break;
474
596
default:
475
597
fprintf(stderr, "Unknown error while reading data from"
476
" encrypted session with mandos server\n");
598
" encrypted session with Mandos server\n");
477
599
retval = -1;
478
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
479
goto exit;
600
gnutls_bye (session, GNUTLS_SHUT_RDWR);
601
goto mandos_end;
480
602
}
481
603
} else {
482
604
buffer_length += (size_t) ret;
483
605
}
484
606
}
485
607
608
if(debug){
609
fprintf(stderr, "Closing TLS session\n");
610
}
611
612
gnutls_bye (session, GNUTLS_SHUT_RDWR);
613
486
614
if (buffer_length > 0){
487
615
decrypted_buffer_size = pgp_packet_decrypt(buffer,
488
616
buffer_length,
489
617
&decrypted_buffer,
490
CERT_ROOT);
618
keydir);
491
619
if (decrypted_buffer_size >= 0){
620
written = 0;
492
621
while(written < (size_t) decrypted_buffer_size){
493
622
ret = (int)fwrite (decrypted_buffer + written, 1,
494
623
(size_t)decrypted_buffer_size - written,
507
636
} else {
508
637
retval = -1;
509
638
}
510
}
511
512
//shutdown procedure
513
514
if(debug){
515
fprintf(stderr, "Closing TLS session\n");
516
}
517
639
} else {
640
retval = -1;
641
}
642
643
/* Shutdown procedure */
644
645
mandos_end:
518
646
free(buffer);
519
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
520
exit:
521
647
close(tcp_sd);
522
gnutls_deinit (es.session);
523
gnutls_certificate_free_credentials (es.cred);
524
gnutls_global_deinit ();
648
gnutls_deinit (session);
525
649
return retval;
526
650
}
527
651
528
static AvahiSimplePoll *simple_poll = NULL;
529
static AvahiServer *server = NULL;
530
531
static void resolve_callback(
532
AvahiSServiceResolver *r,
533
AvahiIfIndex interface,
534
AVAHI_GCC_UNUSED AvahiProtocol protocol,
535
AvahiResolverEvent event,
536
const char *name,
537
const char *type,
538
const char *domain,
539
const char *host_name,
540
const AvahiAddress *address,
541
uint16_t port,
542
AVAHI_GCC_UNUSED AvahiStringList *txt,
543
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
544
AVAHI_GCC_UNUSED void* userdata) {
545
546
assert(r); /* Spurious warning */
652
static void resolve_callback(AvahiSServiceResolver *r,
653
AvahiIfIndex interface,
654
AVAHI_GCC_UNUSED AvahiProtocol protocol,
655
AvahiResolverEvent event,
656
const char *name,
657
const char *type,
658
const char *domain,
659
const char *host_name,
660
const AvahiAddress *address,
661
uint16_t port,
662
AVAHI_GCC_UNUSED AvahiStringList *txt,
663
AVAHI_GCC_UNUSED AvahiLookupResultFlags
664
flags,
665
void* userdata) {
666
mandos_context *mc = userdata;
667
assert(r);
547
668
548
669
/* Called whenever a service has been resolved successfully or
549
670
timed out */
551
672
switch (event) {
552
673
default:
553
674
case AVAHI_RESOLVER_FAILURE:
554
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
555
" type '%s' in domain '%s': %s\n", name, type, domain,
556
avahi_strerror(avahi_server_errno(server)));
675
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
676
" of type '%s' in domain '%s': %s\n", name, type, domain,
677
avahi_strerror(avahi_server_errno(mc->server)));
557
678
break;
558
679
559
680
case AVAHI_RESOLVER_FOUND:
561
682
char ip[AVAHI_ADDRESS_STR_MAX];
562
683
avahi_address_snprint(ip, sizeof(ip), address);
563
684
if(debug){
564
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
565
" port %d\n", name, host_name, ip, port);
685
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
686
PRIu16 ") on port %d\n", name, host_name, ip,
687
interface, port);
566
688
}
567
int ret = start_mandos_communication(ip, port,
568
(unsigned int) interface);
689
int ret = start_mandos_communication(ip, port, interface, mc);
569
690
if (ret == 0){
570
exit(EXIT_SUCCESS);
691
avahi_simple_poll_quit(mc->simple_poll);
571
692
}
572
693
}
573
694
}
574
695
avahi_s_service_resolver_free(r);
575
696
}
576
697
577
static void browse_callback(
578
AvahiSServiceBrowser *b,
579
AvahiIfIndex interface,
580
AvahiProtocol protocol,
581
AvahiBrowserEvent event,
582
const char *name,
583
const char *type,
584
const char *domain,
585
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
586
void* userdata) {
587
588
AvahiServer *s = userdata;
589
assert(b); /* Spurious warning */
590
591
/* Called whenever a new services becomes available on the LAN or
592
is removed from the LAN */
593
594
switch (event) {
595
default:
596
case AVAHI_BROWSER_FAILURE:
597
598
fprintf(stderr, "(Browser) %s\n",
599
avahi_strerror(avahi_server_errno(server)));
600
avahi_simple_poll_quit(simple_poll);
601
return;
602
603
case AVAHI_BROWSER_NEW:
604
/* We ignore the returned resolver object. In the callback
605
function we free it. If the server is terminated before
606
the callback function is called the server will free
607
the resolver for us. */
608
609
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
610
type, domain,
611
AVAHI_PROTO_INET6, 0,
612
resolve_callback, s)))
613
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
614
avahi_strerror(avahi_server_errno(s)));
615
break;
616
617
case AVAHI_BROWSER_REMOVE:
618
break;
619
620
case AVAHI_BROWSER_ALL_FOR_NOW:
621
case AVAHI_BROWSER_CACHE_EXHAUSTED:
622
break;
698
static void browse_callback( AvahiSServiceBrowser *b,
699
AvahiIfIndex interface,
700
AvahiProtocol protocol,
701
AvahiBrowserEvent event,
702
const char *name,
703
const char *type,
704
const char *domain,
705
AVAHI_GCC_UNUSED AvahiLookupResultFlags
706
flags,
707
void* userdata) {
708
mandos_context *mc = userdata;
709
assert(b);
710
711
/* Called whenever a new services becomes available on the LAN or
712
is removed from the LAN */
713
714
switch (event) {
715
default:
716
case AVAHI_BROWSER_FAILURE:
717
718
fprintf(stderr, "(Avahi browser) %s\n",
719
avahi_strerror(avahi_server_errno(mc->server)));
720
avahi_simple_poll_quit(mc->simple_poll);
721
return;
722
723
case AVAHI_BROWSER_NEW:
724
/* We ignore the returned Avahi resolver object. In the callback
725
function we free it. If the Avahi server is terminated before
726
the callback function is called the Avahi server will free the
727
resolver for us. */
728
729
if (!(avahi_s_service_resolver_new(mc->server, interface,
730
protocol, name, type, domain,
731
AVAHI_PROTO_INET6, 0,
732
resolve_callback, mc)))
733
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
734
name, avahi_strerror(avahi_server_errno(mc->server)));
735
break;
736
737
case AVAHI_BROWSER_REMOVE:
738
break;
739
740
case AVAHI_BROWSER_ALL_FOR_NOW:
741
case AVAHI_BROWSER_CACHE_EXHAUSTED:
742
if(debug){
743
fprintf(stderr, "No Mandos server found, still searching...\n");
623
744
}
624
}
625
626
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
627
AvahiServerConfig config;
745
break;
746
}
747
}
748
749
/* Combines file name and path and returns the malloced new
750
string. some sane checks could/should be added */
751
static char *combinepath(const char *first, const char *second){
752
char *tmp;
753
int ret = asprintf(&tmp, "%s/%s", first, second);
754
if(ret < 0){
755
return NULL;
756
}
757
return tmp;
758
}
759
760
761
int main(int argc, char *argv[]){
628
762
AvahiSServiceBrowser *sb = NULL;
629
763
int error;
630
764
int ret;
631
int returncode = EXIT_SUCCESS;
765
int exitcode = EXIT_SUCCESS;
632
766
const char *interface = "eth0";
633
unsigned int if_index;
767
struct ifreq network;
768
int sd;
769
uid_t uid;
770
gid_t gid;
634
771
char *connect_to = NULL;
635
636
while (true){
637
static struct option long_options[] = {
638
{"debug", no_argument, (int *)&debug, 1},
639
{"connect", required_argument, 0, 'c'},
640
{"interface", required_argument, 0, 'i'},
641
{0, 0, 0, 0} };
642
643
int option_index = 0;
644
ret = getopt_long (argc, argv, "i:", long_options,
645
&option_index);
646
647
if (ret == -1){
648
break;
649
}
650
651
switch(ret){
652
case 0:
653
break;
654
case 'i':
655
interface = optarg;
656
break;
657
case 'c':
658
connect_to = optarg;
659
break;
660
default:
661
exit(EXIT_FAILURE);
662
}
663
}
664
665
if_index = if_nametoindex(interface);
772
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
773
char *pubkeyfilename = NULL;
774
char *seckeyfilename = NULL;
775
const char *pubkeyname = "pubkey.txt";
776
const char *seckeyname = "seckey.txt";
777
mandos_context mc = { .simple_poll = NULL, .server = NULL,
778
.dh_bits = 1024, .priority = "SECURE256"};
779
bool gnutls_initalized = false;
780
781
{
782
struct argp_option options[] = {
783
{ .name = "debug", .key = 128,
784
.doc = "Debug mode", .group = 3 },
785
{ .name = "connect", .key = 'c',
786
.arg = "IP",
787
.doc = "Connect directly to a sepcified mandos server",
788
.group = 1 },
789
{ .name = "interface", .key = 'i',
790
.arg = "INTERFACE",
791
.doc = "Interface that Avahi will conntect through",
792
.group = 1 },
793
{ .name = "keydir", .key = 'd',
794
.arg = "KEYDIR",
795
.doc = "Directory where the openpgp keyring is",
796
.group = 1 },
797
{ .name = "seckey", .key = 's',
798
.arg = "SECKEY",
799
.doc = "Secret openpgp key for gnutls authentication",
800
.group = 1 },
801
{ .name = "pubkey", .key = 'p',
802
.arg = "PUBKEY",
803
.doc = "Public openpgp key for gnutls authentication",
804
.group = 2 },
805
{ .name = "dh-bits", .key = 129,
806
.arg = "BITS",
807
.doc = "dh-bits to use in gnutls communication",
808
.group = 2 },
809
{ .name = "priority", .key = 130,
810
.arg = "PRIORITY",
811
.doc = "GNUTLS priority", .group = 1 },
812
{ .name = NULL }
813
};
814
815
816
error_t parse_opt (int key, char *arg,
817
struct argp_state *state) {
818
/* Get the INPUT argument from `argp_parse', which we know is
819
a pointer to our plugin list pointer. */
820
switch (key) {
821
case 128:
822
debug = true;
823
break;
824
case 'c':
825
connect_to = arg;
826
break;
827
case 'i':
828
interface = arg;
829
break;
830
case 'd':
831
keydir = arg;
832
break;
833
case 's':
834
seckeyname = arg;
835
break;
836
case 'p':
837
pubkeyname = arg;
838
break;
839
case 129:
840
errno = 0;
841
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
842
if (errno){
843
perror("strtol");
844
exit(EXIT_FAILURE);
845
}
846
break;
847
case 130:
848
mc.priority = arg;
849
break;
850
case ARGP_KEY_ARG:
851
argp_usage (state);
852
case ARGP_KEY_END:
853
break;
854
default:
855
return ARGP_ERR_UNKNOWN;
856
}
857
return 0;
858
}
859
860
struct argp argp = { .options = options, .parser = parse_opt,
861
.args_doc = "",
862
.doc = "Mandos client -- Get and decrypt"
863
" passwords from mandos server" };
864
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
865
if (ret == ARGP_ERR_UNKNOWN){
866
fprintf(stderr, "Unknown error while parsing arguments\n");
867
exitcode = EXIT_FAILURE;
868
goto end;
869
}
870
}
871
872
pubkeyfilename = combinepath(keydir, pubkeyname);
873
if (pubkeyfilename == NULL){
874
perror("combinepath");
875
exitcode = EXIT_FAILURE;
876
goto end;
877
}
878
879
seckeyfilename = combinepath(keydir, seckeyname);
880
if (seckeyfilename == NULL){
881
perror("combinepath");
882
exitcode = EXIT_FAILURE;
883
goto end;
884
}
885
886
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
887
if (ret == -1){
888
fprintf(stderr, "init_gnutls_global failed\n");
889
exitcode = EXIT_FAILURE;
890
goto end;
891
} else {
892
gnutls_initalized = true;
893
}
894
895
/* If the interface is down, bring it up */
896
{
897
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
898
if(sd < 0) {
899
perror("socket");
900
exitcode = EXIT_FAILURE;
901
goto end;
902
}
903
strcpy(network.ifr_name, interface);
904
ret = ioctl(sd, SIOCGIFFLAGS, &network);
905
if(ret == -1){
906
perror("ioctl SIOCGIFFLAGS");
907
exitcode = EXIT_FAILURE;
908
goto end;
909
}
910
if((network.ifr_flags & IFF_UP) == 0){
911
network.ifr_flags |= IFF_UP;
912
ret = ioctl(sd, SIOCSIFFLAGS, &network);
913
if(ret == -1){
914
perror("ioctl SIOCSIFFLAGS");
915
exitcode = EXIT_FAILURE;
916
goto end;
917
}
918
}
919
close(sd);
920
}
921
922
uid = getuid();
923
gid = getgid();
924
925
ret = setuid(uid);
926
if (ret == -1){
927
perror("setuid");
928
}
929
930
setgid(gid);
931
if (ret == -1){
932
perror("setgid");
933
}
934
935
if_index = (AvahiIfIndex) if_nametoindex(interface);
666
936
if(if_index == 0){
667
937
fprintf(stderr, "No such interface: \"%s\"\n", interface);
668
938
exit(EXIT_FAILURE);
674
944
char *address = strrchr(connect_to, ':');
675
945
if(address == NULL){
676
946
fprintf(stderr, "No colon in address\n");
677
exit(EXIT_FAILURE);
947
exitcode = EXIT_FAILURE;
948
goto end;
678
949
}
679
950
errno = 0;
680
951
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
681
952
if(errno){
682
953
perror("Bad port number");
683
exit(EXIT_FAILURE);
954
exitcode = EXIT_FAILURE;
955
goto end;
684
956
}
685
957
*address = '\0';
686
958
address = connect_to;
687
ret = start_mandos_communication(address, port, if_index);
959
ret = start_mandos_communication(address, port, if_index, &mc);
688
960
if(ret < 0){
689
exit(EXIT_FAILURE);
961
exitcode = EXIT_FAILURE;
690
962
} else {
691
exit(EXIT_SUCCESS);
963
exitcode = EXIT_SUCCESS;
692
964
}
965
goto end;
693
966
}
694
967
695
968
if (not debug){
696
969
avahi_set_log_function(empty_log);
697
970
}
698
971
699
/* Initialize the psuedo-RNG */
972
/* Initialize the pseudo-RNG for Avahi */
700
973
srand((unsigned int) time(NULL));
701
702
/* Allocate main loop object */
703
if (!(simple_poll = avahi_simple_poll_new())) {
704
fprintf(stderr, "Failed to create simple poll object.\n");
705
706
goto exit;
707
}
708
709
/* Do not publish any local records */
710
avahi_server_config_init(&config);
711
config.publish_hinfo = 0;
712
config.publish_addresses = 0;
713
config.publish_workstation = 0;
714
config.publish_domain = 0;
715
716
/* Allocate a new server */
717
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
718
&config, NULL, NULL, &error);
719
720
/* Free the configuration data */
721
avahi_server_config_free(&config);
722
723
/* Check if creating the server object succeeded */
724
if (!server) {
725
fprintf(stderr, "Failed to create server: %s\n",
974
975
/* Allocate main Avahi loop object */
976
mc.simple_poll = avahi_simple_poll_new();
977
if (mc.simple_poll == NULL) {
978
fprintf(stderr, "Avahi: Failed to create simple poll"
979
" object.\n");
980
exitcode = EXIT_FAILURE;
981
goto end;
982
}
983
984
{
985
AvahiServerConfig config;
986
/* Do not publish any local Zeroconf records */
987
avahi_server_config_init(&config);
988
config.publish_hinfo = 0;
989
config.publish_addresses = 0;
990
config.publish_workstation = 0;
991
config.publish_domain = 0;
992
993
/* Allocate a new server */
994
mc.server = avahi_server_new(avahi_simple_poll_get
995
(mc.simple_poll), &config, NULL,
996
NULL, &error);
997
998
/* Free the Avahi configuration data */
999
avahi_server_config_free(&config);
1000
}
1001
1002
/* Check if creating the Avahi server object succeeded */
1003
if (mc.server == NULL) {
1004
fprintf(stderr, "Failed to create Avahi server: %s\n",
726
1005
avahi_strerror(error));
727
returncode = EXIT_FAILURE;
728
goto exit;
1006
exitcode = EXIT_FAILURE;
1007
goto end;
729
1008
}
730
1009
731
/* Create the service browser */
732
sb = avahi_s_service_browser_new(server, (AvahiIfIndex)if_index,
1010
/* Create the Avahi service browser */
1011
sb = avahi_s_service_browser_new(mc.server, if_index,
733
1012
AVAHI_PROTO_INET6,
734
1013
"_mandos._tcp", NULL, 0,
735
browse_callback, server);
736
if (!sb) {
1014
browse_callback, &mc);
1015
if (sb == NULL) {
737
1016
fprintf(stderr, "Failed to create service browser: %s\n",
738
avahi_strerror(avahi_server_errno(server)));
739
returncode = EXIT_FAILURE;
740
goto exit;
1017
avahi_strerror(avahi_server_errno(mc.server)));
1018
exitcode = EXIT_FAILURE;
1019
goto end;
741
1020
}
742
1021
743
1022
/* Run the main loop */
744
1023
745
1024
if (debug){
746
fprintf(stderr, "Starting avahi loop search\n");
1025
fprintf(stderr, "Starting Avahi loop search\n");
747
1026
}
748
1027
749
avahi_simple_poll_loop(simple_poll);
1028
avahi_simple_poll_loop(mc.simple_poll);
750
1029
751
exit:
1030
end:
752
1031
753
1032
if (debug){
754
1033
fprintf(stderr, "%s exiting\n", argv[0]);
755
1034
}
756
1035
757
1036
/* Cleanup things */
758
if (sb)
1037
if (sb != NULL)
759
1038
avahi_s_service_browser_free(sb);
760
1039
761
if (server)
762
avahi_server_free(server);
763
764
if (simple_poll)
765
avahi_simple_poll_free(simple_poll);
766
767
return returncode;
1040
if (mc.server != NULL)
1041
avahi_server_free(mc.server);
1042
1043
if (mc.simple_poll != NULL)
1044
avahi_simple_poll_free(mc.simple_poll);
1045
free(pubkeyfilename);
1046
free(seckeyfilename);
1047
1048
if (gnutls_initalized){
1049
gnutls_certificate_free_credentials(mc.cred);
1050
gnutls_global_deinit ();
1051
}
1052
1053
return exitcode;
768
1054
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0